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Rule Dark Skies

Dark Skies Forecast for Joshua Tree, US Southwest

Twentynine Palms, California, United States

Joshua Tree combines branching desert trees with rounded granite boulders, open washes and mountain silhouettes for strong foreground-led night scenes.

11 matching opportunities in the 14-day forecast.

Upcoming Opportunities

When all conditions match, PhotoWeather marks an opportunity window.

Times shown in America/Denver
pristinedarkskies weather icon
First upcoming window
Good Dark Skies
Joshua Tree
Sun, Sep 20 · 02:00–03:00 · 1h window
Medium confidence
65%
🌛Moon Altitude-5.7°
☁️Total Cloud Coverage17%
pristinedarkskies weather icon
Pristine Dark Skies (pristine)
Joshua Tree
Mon, Sep 21 · 03:00–06:07
🌛Moon Altitude:-40.6--6°
Medium
pristinedarkskies weather icon
Pristine Dark Skies (pristine)
Joshua Tree
Tue, Sep 22 · 03:00–06:08
🌛Moon Altitude:-29.4-4.7°
Low
pristinedarkskies weather icon
Pristine Dark Skies (pristine)
Joshua Tree
Wed, Sep 23 · 04:00–06:09
🌛Moon Altitude:-17.9-5.1°
Low
pristinedarkskies weather icon
Pristine Dark Skies (pristine)
Joshua Tree
Thu, Sep 24 · 05:00–06:10
🌛Moon Altitude:-6.1-5.6°
Low
pristinedarkskies weather icon
Pristine Dark Skies (pristine)
Joshua Tree
Fri, Sep 25 · 06:00–06:10
🌛Moon Altitude:
Low
pristinedarkskies weather icon
Good Dark Skies at Dusk
Joshua Tree
Sat, Sep 26 · 20:58–21:00
🌛Moon Altitude:6.2°
Low
+4 more windows in the next 14 days

70-hour requirements breakdown

When available, this detailed table covers only the stated 70-hour horizon (typically 72–168 hours, depending on available hourly data). Opportunity records above span the full 14-day forecast period, so this table does not explain that entire period. Times shown in America/Denver.

Requirements breakdown is temporarily unavailable or expired. This does not mean no opportunities.

Supporting forecast inputs

Additional hourly values for interpreting the forecast and any derived scores. See the separate requirements breakdown for rule logic; missing values are unavailable.

Forecast time (America/Denver)Astronomical NightMoon AltitudeMoon Illumination
Sat, Sep 19, 2026Sunrise · Sunset
Unavailable-8.3°57%
Unavailable57%
Unavailable11°57%
Unavailable19°57%
Unavailable25°57%
NightUnavailable28°57%
NightUnavailable29°57%
NightUnavailable26°57%
NightUnavailable21°57%
Sun, Sep 20, 2026Sunrise · Sunset
NightUnavailable13°66%
NightUnavailable4.4°66%
NightUnavailable-5.7°66%
NightUnavailable-17°66%
NightUnavailable-28°66%
NightUnavailable-40°66%
NightUnavailable-52°66%
NightUnavailable-64°66%
Unavailable-75°66%
Unavailable-82°66%
Unavailable-75°66%
Unavailable-64°66%
Unavailable-52°66%
Unavailable-40°66%
Unavailable-28°66%
Unavailable-16°66%
Unavailable-5.3°66%
Unavailable66%
Unavailable14°66%
Unavailable22°66%
NightUnavailable28°66%
NightUnavailable31°66%
NightUnavailable31°66%
NightUnavailable28°66%
Mon, Sep 21, 2026Sunrise · Sunset
NightUnavailable22°75%
NightUnavailable14°75%
NightUnavailable4.4°75%
NightUnavailable-6°75%
NightUnavailable-17°75%
NightUnavailable-29°75%
NightUnavailable-41°75%
NightUnavailable-53°75%
Unavailable-64°75%
Unavailable-75°75%
Unavailable-79°75%
Unavailable-71°75%
Unavailable-60°75%
Unavailable-48°75%
Unavailable-36°75%
Unavailable-24°75%
Unavailable-13°75%
Unavailable-1.3°75%
Unavailable9.2°75%
Unavailable19°75%
NightUnavailable27°75%
NightUnavailable32°75%
NightUnavailable35°75%
NightUnavailable34°75%
Tue, Sep 22, 2026Sunrise · Sunset
NightUnavailable30°82%
NightUnavailable23°82%
NightUnavailable15°82%
NightUnavailable4.7°82%
NightUnavailable-6.2°82%
NightUnavailable-18°82%
NightUnavailable-29°82%
NightUnavailable-41°82%
Unavailable-53°82%
Unavailable-64°82%
Unavailable-73°82%
Unavailable-74°82%
Unavailable-66°82%
Unavailable-55°82%
Unavailable-44°82%

How this forecast is evaluated

See which weather signals PhotoWeather uses to identify Dark Skies conditions across US Southwest. The requirements and hourly values above show how those signals apply at Joshua Tree.

Explore Dark Skies conditions across US Southwest →

Recorded match history

Completed PhotoWeather forecast matches recorded for this exact rule at Joshua Tree during the last 365 days.

Last 30 days
0
recorded matching windows
Last 90 days
0
recorded matching windows
Last 365 days
175
recorded matching windows · 73% average confidence
Most frequent recorded start hour

09:00 local time, shared by 30 of 175 matches recorded in the last 365 days.

Most represented month

February, with 67 of 175 matches recorded in the last 365 days.

These figures use completed PhotoWeather MatchEvent records from the previous 365 days only. They describe recorded forecast matches, not observations, climatological probability, or a guarantee of future conditions.

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How this forecast is made

Opportunities are threshold-based signals: PhotoWeather checks whether forecast conditions match the rules for a photography scenario. They are planning guidance, not guarantees. Forecasts can change as new model runs arrive, and confidence generally decreases farther into the forecast horizon, so recheck conditions before travelling.

The weather forecast foundation comes through Open-Meteo , which aggregates models from weather agencies. PhotoWeather applies condition-specific thresholds and derived calculations; not every condition uses every model or data input.

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